22020022122021 has 72 divisors (see below), whose sum is σ = 39957373135680. Its totient is φ = 11438442639360.

The previous prime is 22020022121959. The next prime is 22020022122097. The reversal of 22020022122021 is 12022122002022.

22020022122021 is a `hidden beast` number, since 2 + 2 + 0 + 200 + 221 + 220 + 21 = 666.

It is not a de Polignac number, because 22020022122021 - 2⁶ = 22020022121957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020022121985 and 22020022122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020022126021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 206217381 + ... + 206324133.

Almost surely, 2^{22020022122021} is an apocalyptic number.

22020022122021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22020022122021 is a deficient number, since it is larger than the sum of its proper divisors (17937351013659).

22020022122021 is a wasteful number, since it uses less digits than its factorization.

22020022122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133847 (or 133833 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22020022122021 its reverse (12022122002022), we get a palindrome (34042144124043).

The spelling of 22020022122021 in words is "twenty-two trillion, twenty billion, twenty-two million, one hundred twenty-two thousand, twenty-one".